| 发明名称 |
METHOD AND APPARATUS FOR ENHANCING SEAM UNIFORMITY IN SPIRALLY WOUND TUBES |
| 摘要 |
<p>The invention provides a method and apparatus for spirally winding a tube of enhanced spiral seam uniformity that is simple and reliable. The spirally wound tube (10) is formed using a spiral pitch control surface that engages with an exterior or interior cylindrical surface of a spirally wound tube and constrains movement of the tube to a predetermined spiral rotation as it is formed on a cylindrical stationary mandrel (12). Preferably, the pitch control surface comprises a tube engaging surface (14) positioned along at least one spirally aligned portion of the exterior portion of the tube forming mandrel.</p> |
| 申请公布号 |
CA2262875(C) |
申请公布日期 |
2000.02.22 |
| 申请号 |
CA19972262875 |
申请日期 |
1997.07.17 |
| 申请人 |
SONOCO PRODUCTS COMPANY |
发明人 |
LANGUILLAT, JEAN PAUL;VAN DE CAMP, JOHANNES WILHELMUS;HOWARD, DAVID |
| 分类号 |
B29C53/60;B29C53/82;B29C65/48;B31C3/00;(IPC1-7):B31C3/00;B29C53/62 |
主分类号 |
B29C53/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
